1973812 has 12 divisors (see below), whose sum is σ = 3528000. Its totient is φ = 965816.

The previous prime is 1973779. The next prime is 1973813. The reversal of 1973812 is 2183791.

It is a super-2 number, since 2×1973812² = 7791867622688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1973813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5062 + ... + 5437.

It is an arithmetic number, because the mean of its divisors is an integer number (294000).

2^1973812 is an apocalyptic number.

It is an amenable number.

1973812 is a deficient number, since it is larger than the sum of its proper divisors (1554188).

1973812 is a wasteful number, since it uses less digits than its factorization.

1973812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10550 (or 10548 counting only the distinct ones).

The product of its digits is 3024, while the sum is 31.

The square root of 1973812 is about 1404.9241972434. The cubic root of 1973812 is about 125.4397736453.

Adding to 1973812 its product of digits (3024), we get a square (1976836 = 1406²).

The spelling of 1973812 in words is "one million, nine hundred seventy-three thousand, eight hundred twelve".